| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent contamination to a periphery in advance.SOLUTION: In an ink jet recording device, a cannon 306, a nozzle 302, a charge electrode 308, an electro static charge detection sensor 310, a deflection electrode 312, and a gutter 304 are disposed in the written order from the upper side. An ink barrel displacement sensor 20 is provided above the gutter 304. The ink jet recording device detects displacement of an ink barrel 14 on the basis of a signal from the ink barrel displacement sensor 20 and outputs an alert signal when determining that the ink barrel 14 intrudes into an outer peripheral region Ar in an upper end opening 304a of the gutter 304.</p> |
